1 files changed, 58 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/ram/rockchip/sdram_rk3128.c b/roms/u-boot/drivers/ram/rockchip/sdram_rk3128.c
new file mode 100644
index 000000000..16cfbf947
--- /dev/null
+++ b/roms/u-boot/drivers/ram/rockchip/sdram_rk3128.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <ram.h>
+#include <syscon.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/grf_rk3128.h>
+#include <asm/arch-rockchip/sdram.h>
+
+struct dram_info {
+	struct ram_info info;
+	struct rk3128_grf *grf;
+};
+
+static int rk3128_dmc_probe(struct udevice *dev)
+{
+	struct dram_info *priv = dev_get_priv(dev);
+
+	priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+	debug("%s: grf=%p\n", __func__, priv->grf);
+	priv->info.base = CONFIG_SYS_SDRAM_BASE;
+	priv->info.size = rockchip_sdram_size(
+				(phys_addr_t)&priv->grf->os_reg[1]);
+
+	return 0;
+}
+
+static int rk3128_dmc_get_info(struct udevice *dev, struct ram_info *info)
+{
+	struct dram_info *priv = dev_get_priv(dev);
+
+	*info = priv->info;
+
+	return 0;
+}
+
+static struct ram_ops rk3128_dmc_ops = {
+	.get_info = rk3128_dmc_get_info,
+};
+
+static const struct udevice_id rk3128_dmc_ids[] = {
+	{ .compatible = "rockchip,rk3128-dmc" },
+	{ }
+};
+
+U_BOOT_DRIVER(dmc_rk3128) = {
+	.name = "rockchip_rk3128_dmc",
+	.id = UCLASS_RAM,
+	.of_match = rk3128_dmc_ids,
+	.ops = &rk3128_dmc_ops,
+	.probe = rk3128_dmc_probe,
+	.priv_auto	= sizeof(struct dram_info),
+};